Package edu.harvard.seas.pl.abcdatalog.ast

Class Constant

java.lang.Object

edu.harvard.seas.pl.abcdatalog.ast.Constant

All Implemented Interfaces:

Term

public class Constant
extends Object
implements Term

A zero-ary function symbol (i.e., a constant in Datalog).

Method Summary

Modifier and Type	Method	Description
<I, O> O	accept(TermVisitor<I,O> visitor, I state)
Term	applySubst(Substitution subst)
static Constant	create(String name)	Returns a constant with the given string identifier.
String	getName()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

create

public static Constant create(String name)

Returns a constant with the given string identifier.

Parameters:

name - the string identifier

Returns:

the constant

getName

public String getName()

toString

public String toString()

Overrides:

toString in class Object

accept

public <I,
O> O accept(TermVisitor<I,O> visitor,
 I state)

Specified by:

accept in interface Term

applySubst

public Term applySubst(Substitution subst)

Specified by:

applySubst in interface Term